There is a survey being run by the University of Oregon on art historical data usage.
This short survey seeks to gauge information about the usage and users of open data and datasets from museums and other cultural heritage institutions. The primary survey groups are those working and researching in art history. However, researchers in all disciplines are encouraged to respond.
You can do the survey here: https://docs.google.com/forms/d/1iD3XuuvSwCWyE_kgKdNqX1iJvJmQ6JVDl_Wmno2qnyM/viewform?c=0&w=1